| abstract |
This invention relates to a composition of matter represented by the formula below, and to a polymerization process comprising combining an olefin in the gas or slurry phase with an activator, a support and a compound represented by the following formula:n nwherein nM is a group 3 to 14 metal, neach X is independently an anionic leaving group, nn is the oxidation state of M, nm is the formal charge of the YZL ligand, nY is a group 15 element, nZ is a group 15 element, nL is a group 15 or 16 element, nR 1 and R 2 are independently a C 1 to C 20 hydrocarbon group, a heteroatom containing group, silicon, germanium, tin, lead, phosphorus, a halogen, nR 1 and R 2 may also be interconnected to each other, nR 3 is absent, or is hydrogen, a group 14 atom containing group, a halogen, a heteroatom containing group, nR 4 and R 5 are independently an aryl group, a substituted aryl group, a cyclic alkyl group, a substituted cyclic alkyl group, or multiple ring system, nR 6 and R 7 are independently absent or hydrogen, halogen, a heteroatom or a hydrocarbyl group, or a heteroatom containing group. |